Quote a launch
arcnow_quote_launchGet the exact launch cost before spending: launch fee, initial buy, 1% trade fee, tokens received, and predicted token addresses. Confirms the irreversible total upfront.
Instructions
What launching a token would cost, before anything is spent: the launch fee the quote registry sets for the quote (zero on arcnow.io's networks — launching is free — but read live, never assumed), the initial buy, the 1% trade fee the initial buy itself pays, the tokens the creator would receive, and — given a creator address — the exact addresses the token and its curve would land at.
Costs nothing and signs nothing. Always call this before arcnow_launch and show the user the total, because a launch is irreversible: the name, symbol, supply, curve shape and graduation venue are fixed at that transaction and can never be changed afterwards, by anyone, including whoever launched it.
THE QUOTE. A token is priced for life in the quote it launches in: quote names it by symbol or address — native USDC by default, or an ERC-20 such as EURC that the quote registry accepts (arcnow_quote_tokens). The initial buy — and any launch fee — is in that quote, and so is every trade in the token afterwards. Native USDC is paid as msg.value; an ERC-20 is pulled by the launchpad after an exact approval.
The total is EXACTLY what a launch requires, not a minimum — for native USDC the launchpad reverts on an overpayment as readily as an underpayment, because it has no refund path.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| name | Yes | The token's name. Permanent — there is no setter for it, on any contract, ever. | |
| quote | No | Optional: the quote token to launch in, by symbol ("USDC", "EURC") or by address. Defaults to native USDC. The token is priced in it FOR LIFE: its initial buy and every trade in it afterwards. A symbol is looked up in this network's own quote tokens only. arcnow_quote_tokens lists them with whether the quote registry accepts each and this server's spend cap for it; a quote with no cap cannot be launched in here. | |
| symbol | Yes | The token's ticker. Permanent, and not unique: two tokens may share a symbol, so an address is the only identifier that means anything. | |
| creator | No | Optional: the address that would launch. Given one, this also predicts the token and curve addresses — valid only for that address's CURRENT launch nonce and exactly these parameters. | |
| migrator | No | Optional: where this token graduates to, snapshotted into the curve at launch and immutable thereafter. Defaults to the platform's default migrator. | |
| platform | No | Optional: the PlatformConfig to launch under. Defaults to arcnow.io's own, which is what almost every launch uses. | |
| initialBuy | Yes | How much of the launch's quote the creator spends buying their own token in the launch transaction, in whole units, with no more decimals than the quote has. It is an ORDINARY buy: it runs through the curve and pays the 1% trade fee. There is no fee-free entry into a curve, and no launch fee on top of it on arcnow.io's networks. "0" is allowed. | |
| metadataUri | Yes | REQUIRED. An ipfs:// or https:// URI for the token's metadata — image, description, links. The launchpad reverts a launch whose URI is empty (InvalidLaunchParameters), so there is no launching without one. Permanent: it is stamped into the token at launch and there is no setter. |